hello, Using an ubuntu natty std kernel, had a file system with 2 x 500 G drives. One was giving lots of SMART errors, and saying "failure imminent". Added a 750 GB to replace (btrfs device add), did a btrfs device delete <the first bad drive> ... ran for a few hours, completed correctly afaict. Noticed that the other 500 G device was acting strangely as well. It had issues staying on the bus. The 750 G drive is on another bus, and unaffected by issues with the 500. Two power cycles without proper shutdown were necessary until I gave up and removed the second drive. fs would then only mount with -o degraded. Did that. Added a 1 TB drive OK. this did not trigger a balance. Left it alone for an hour or two, trying to delete the second 500 G drive. no luck. ... alu% btrfs filesystem balance /alu/tr8m_1 # ran for a few hours... Segmentation fault alu% btrfs filesystem balance /alu/tr8m_1 # running for eight hours or so,... in another window tried: alu% btrfs filesystem show failed to read /dev/sr0 Label: none uuid: aec637e6-422a-41c6-8c03-b58d7912decb Total devices 2 FS bytes used 677.79GB devid 1 size 931.51GB used 680.27GB path /dev/sde devid 2 size 931.51GB used 680.27GB path /dev/sdf Label: none uuid: b7d56b78-f15a-42bf-bef1-0bff947dedbb Total devices 3 FS bytes used 95.08GB devid 3 size 698.64GB used 97.02GB path /dev/sdd devid 4 size 931.51GB used 95.01GB path /dev/sdg *** Some devices missing Btrfs Btrfs v0.19 alu% btrfs device delete missing /alu/tr8m_1 ^C^Z so the balance and device delete have been hung for around 8 hours, there is no activity on the devices. All data is still accessible, file system is behaving normally. processes are not killable. Would like to return to safe state with current drives. Suggestions? -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
